perpetual calendar


Also found in: Dictionary, Thesaurus, Wikipedia.

perpetual calendar

[pər′pech·ə·wəl ′kal·ən·dər]
(astronomy)
A table or mechanical device used to determine the day of the week corresponding to any given date over a period of many years.
Mentioned in ?
References in periodicals archive ?
Audemars Piguet Royal Oak RD#2 Perpetual Calendar Ultra-Thin
The Royal Oak Perpetual Calendar Only Watch, Unique Piece features the following:
The perpetual calendar is a genius mechanism consisting of just over 80 individual parts.
Moser Endeavour Perpetual Calendar Concept Funky Blue
The Perpetual Calendar Eclipse expertly pairs the moon phase complication with the perpetual calendar - a finely orchestrated union that raises these two features to a new level of elegance.
The perpetual calendar mechanism not only knows the different durations of all the months in the course of a year, it is also aware of the fact that February has 29 days in leap years.
Ellicot presented the Master Complication RS 38 fitted with a movement, which is the flattest minute repeater in the world with a perpetual calendar and moon phase display.
The LANGE 1 TOURBILLON PERPETUAL CALENDAR is self-winding, with even the slightest motion converted into winding energy.
flourishes an extraordinary array of features for a clock of its date--remontoire, cross-beat escapement, Grande et Petite Sonnerie, annual perpetual calendar, early minute hand, diagram of aspects, zodiac, position of the sun in the zodiac, phases and ages of the moon (estimate 250,000 [euro]-350,000 [euro]).
Especially one which can hold two time zones, dive depth, as well as function like a chronograph, thermometer, alarm, perpetual calendar date, compass and divers' logbook.
By combining the Perpetual Calendar with an "All Days Paid" payroll concept, the district is establishing regular pay periods with consistent pay dates every other Friday.